You’d better speak louder to make yourself .
U.S. President Barack Obama on Wednesday paid honor to health care workers who have treated Ebola patients in West Africa, calling them “heroes”_________ to be praised rather than discouraged.
It is reported that the government has ______ the poor in south African countries ______food, clothes and medicine.
— It’s a long time ______I saw you last.— And what is a pity now that it will be a long time______ we see each other again.
So quickly is science and technology advancing ______ is a possibility today may be a reality tomorrow.
With the widespread of fog and haze(雾霾) in central and eastern China, our government is supposed to ______ their efforts to prevent further pollution.